Engine Loom Connector [ E36 ]

[kerrynzl 3]

I am looking at swapping the M50 engine in a E36

The engine I'm swapping in is a large displacement non-vanos M50

what are pins #7 and #8 on the engine loom for? [ pre-1992 loom]

The engine being removed is a M50B20 vanos

what is pin #7 on the Engine loom for ? [ 1993 loom ]

On the car side of the connector both pin #7 and pin #8 are redundant [ but are there on the engine side of the connectors]

Can any one provide an answer [ or a link ] preferably with a connector diagram.

I can't find it in the bentley manual

Thanks Kerry

[kerrynzl 3]

I have found this info on the web, Could anybody [ knowledgable ] decipher what pin #7 and #8 are actually used for. And whether they are needed?

pin 1 none

pin 2 none

pin 3 BRN/GRY IGN timing pin 4

pin 4 BLK/BLU A/C COMP CONTROL

pin 5 BLK/GRY FAN turn on

pin 6 VIO/GRY A/C SWITCH

pin 7 BLK/VIO DRIVE AWAY SIG

pin 8 GRY MIL

pin 9 none

pin 10 none

pin 11 BRN/YEL temp sensor

pin 12 BRN/VIO temp sensor

pin 13 GRN/VIO out to fuse 18 then fuel pump

pin 14 BLK/WHT vss to ECU

pin 15 BLK/GRN Start signal from BMW starter

pin 16 WHT/YEL Rx Data

pin 17 WHT/VIO Tx Data

pin 18 BLK/YEL Start (from IGN +)

pin 19 WHT/GRN Data Link

pin 20 BLK RPM

pin 21 GRN IGN + Power

pin 22 GRN/WHT IGN Power fuse 26

pin 23 BRN/GRY Oil pressure (-)

pin 24 WHT/BLK Fuel consumption

pin 25 BLU Generator

[jochen 4]

Why don't you consult the Electrical Trouble-Shooting Manual (BMW ETM)?

PM me your email and I'll send you a copy (PDF file)

Tell me what year and model (1992 318is etc) and I can send you the full wiring diagram

I would suggest you need 2 x diagrams:

One for your car

One for the donor vehicle

Then you can print and sit down with the diagrams side by side and compare differences.

[kerrynzl 3]

Hey , I just want to give a big "Thank You" to Jochen for all his help.

Problem solved [ with a bit of knowledge ]

Thanks again!